"Meat" describes wild venison and grass raised cattle as well as factory farmed meat. Factory farmed meat is akin to an animal holocaust, sure, but what happens to deer if we stop eating them is worse than that. First the population explodes, and with increased proximity to each other, diseases such as CWD also explode amongst the deer population. Good grazing land dwindles as deer slowly starve to death while a growing portion of them live as literal zombies due to CWD. The best case scenario is that the wild predators return and torture them all to death by eating them ass-first. There HAS to be a predator to prevent this, and humans are the more humane predator. As a side note, all of those happy grass raised cattle simply disappear without their consumption, because modern cattle cannot survive in the wild.